Juan José Ramos Antón
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View article: Epidemiological study on the prevalence of Anaplasma ovis infection in Aragón, Spain
Epidemiological study on the prevalence of Anaplasma ovis infection in Aragón, Spain Open
Ovine anaplasmosis is an emerging disease in Europe, primarily affecting the Mediterranean region. It is caused by Anaplasma ovis, a bacterium mainly transmitted by ticks. Despite its growing presence, comprehensive data on its distributio…
View article: Colorimetric dual DNAzyme reaction triggered by loop-mediated isothermal amplification for the visual detection of Shiga toxin-producing Escherichia coli in food matrices
Colorimetric dual DNAzyme reaction triggered by loop-mediated isothermal amplification for the visual detection of Shiga toxin-producing Escherichia coli in food matrices Open
Shiga toxin-producing Escherichia coli (STEC) is causing outbreaks worldwide and a rapid detection method is urgently needed. Loop-mediated isothermal amplification (LAMP) has attracted attention in the development of pathogen detection me…
View article: Case study of GBMT post-bariatric surgery with psychiatric co-morbidities
Case study of GBMT post-bariatric surgery with psychiatric co-morbidities Open
Introduction Gelatinous bone marrow transformation (GBMT) is a degenerative change in hematopoietic bone marrow, initially linked to anorexia nervosa (AN) and recently to bariatric surgery (BS) (Böhm et al . Am J Surg Pathol 2000; 24(1) 56…
View article: Tick control prevents carcass condemnations in lambs caused by Anaplasma ovis
Tick control prevents carcass condemnations in lambs caused by Anaplasma ovis Open
Ovine anaplasmosis is causing relevant economic losses in Spain due to icteric carcass condemnation in lambs. Anaplasma ovis infection occurs through grazing sheep that transfer ticks to their offspring. This study compared the efficacy of…
View article: Comparative study of three different routes of experimental inoculation of the orf virus
Comparative study of three different routes of experimental inoculation of the orf virus Open
Three different methods of inducing experimental infection of lambs with orf virus (ORFV), the cause of Contagious Ecthyma, were examined in nine animals; intradermal inoculation, subcutaneous injection and epithelial scarification. The ob…
View article: Presence of anti-Leishmania infantum antibodies in sheep (Ovis aries) in Spain
Presence of anti-Leishmania infantum antibodies in sheep (Ovis aries) in Spain Open
Sandflies are the primary transmission vector for Leishmania spp parasite in endemic regions. The role of other animals, different from the dog, is under discussion in the leishmaniosis endemic countries. A limited number of reports have b…
View article: Use of a Local Anaesthetic/Antiseptic Formulation for the Treatment of Lambs Experimentally Infected with Orf Virus
Use of a Local Anaesthetic/Antiseptic Formulation for the Treatment of Lambs Experimentally Infected with Orf Virus Open
Contagious ecthyma is a highly transmissible eruptive viral disease of the skin and mucosa of sheep and goats distributed worldwide. The treatment of orf lesions is usually based on the use of antiseptics and antibiotics for the management…
View article: Anaemia in Ruminants Caused by Plant Consumption
Anaemia in Ruminants Caused by Plant Consumption Open
Plant toxicology has affected animals throughout evolution. Plants have adapted themselves to the environment. This adaptation has led to the development of defensive strategies to avoid being consumed. Plants have several chemical compoun…
View article: Comparative Study of the Use of Doxycycline and Oxytetracycline to Treat Anaplasmosis in Fattening Lambs
Comparative Study of the Use of Doxycycline and Oxytetracycline to Treat Anaplasmosis in Fattening Lambs Open
Lamb icteric carcasses condemnation due to Anaplasma ovis is causing relevant economic losses. A comparative study was developed on the effects of different antibiotics to treat ovine anaplasmosis in fattening lambs. A total of 100 A. ovis…
View article: Jaagsiekte sheep retrovirus found in milk macrophages but not in milk lymphocytes or mammary gland epithelia of naturally infected sheep
Jaagsiekte sheep retrovirus found in milk macrophages but not in milk lymphocytes or mammary gland epithelia of naturally infected sheep Open
Jaagsiekte sheep retrovirus (JSRV) causes ovine pulmonary adenocarcinoma. JSRV can be transmitted via infected colostrum or milk, which contain somatic cells (SCs) harboring JSRV provirus. Nevertheless, the cell types involved in this form…
View article: Absence of SARS-CoV-2 Antibodies in Natural Environment Exposure in Sheep in Close Contact with Humans
Absence of SARS-CoV-2 Antibodies in Natural Environment Exposure in Sheep in Close Contact with Humans Open
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the zoonotic causative agent of coronavirus disease 2019 (COVID-19) that has caused a pandemic situation with millions of infected humans worldwide. Among domestic animals, th…
View article: Comparative Study of Bacterial Isolates in Ovine Mandibular Osteomyelitis and Oral Microbiota of Healthy Sheep
Comparative Study of Bacterial Isolates in Ovine Mandibular Osteomyelitis and Oral Microbiota of Healthy Sheep Open
Microorganisms involved in ovine mandibular osteomyelitis (OMO) have not yet been deeply studied. The aim of the present study is to elucidate the microorganisms involved in OMO, comparing them with the microorganisms found in the healthy …
View article: The Relevance of Caseous Lymphadenitis as a Cause of Culling in Adult Sheep
The Relevance of Caseous Lymphadenitis as a Cause of Culling in Adult Sheep Open
Four hundred and ninety-eight culled sheep received at the Ruminant Clinical Service of the Veterinary Faculty of Zaragoza, Spain, were examined in life and after humanitarian sacrifice in order to reach the final diagnosis of the cause of…
View article: Anaplasmosis Outbreak in Lambs: First Report Causing Carcass Condemnation
Anaplasmosis Outbreak in Lambs: First Report Causing Carcass Condemnation Open
In spring and summer 2020, six outbreaks of condemnation of jaundiced lamb carcasses were diagnosed in different farms in Aragón region, Spain. Anaplasma ovis was identified in all affected farms. Four hundred and ninety-two lambs from two…
View article: Management of Risk Factors Associated with Chronic Oral Lesions in Sheep
Management of Risk Factors Associated with Chronic Oral Lesions in Sheep Open
Oral disorders constitute a significant cause of weight loss in sheep. In a study of disorders of the oral cavity of 36,033 sheep from 60 meat sheep flocks in Spain, we looked for management risk factors associated with chronic oral lesion…
View article: Impact of Stress on Health and Final Weight in Fattening Lambs
Impact of Stress on Health and Final Weight in Fattening Lambs Open
In order to determine whether the stress level had any influence on the health and final weight of Rasa Aragonesa fattening lambs, stress markers were measured throughout the fattening period in 80 feedlot lambs (group F) and in 40 lambs f…
View article: Impact of a Topical Anaesthesia Wound Management Formulation on Pain, Inflammation and Reduction of Secondary Infections after Tail Docking in Lambs
Impact of a Topical Anaesthesia Wound Management Formulation on Pain, Inflammation and Reduction of Secondary Infections after Tail Docking in Lambs Open
We examined several procedures for surgical tail docking; with and without general anaesthesia (GA), including the use of a topical wound gel formulation to provide pain relief (PR) and improve healing after surgery, containing local anaes…
View article: Use of Computed Tomography and Thermography for the Diagnosis of Respiratory Disorders in Adult Sheep
Use of Computed Tomography and Thermography for the Diagnosis of Respiratory Disorders in Adult Sheep Open
Respiratory diseases are one of the main causes of death and economic losses in sheep farming. The prevention and treatment of these diseases must be based on a correct diagnosis, which improves the results of health plans and optimizes th…
View article: Sheep Farming - An Approach to Feed, Growth and Health
Sheep Farming - An Approach to Feed, Growth and Health Open
This book examines the branch of animal husbandry of sheep farming. It focuses on sheep feeding in regions with extensive sheep farming, such as the Sahel region in Africa and Serra da Estrela, Portugal, and describes the form and importan…
View article: Technical Note: A new device for cervical insemination of sheep – design and field test1
Technical Note: A new device for cervical insemination of sheep – design and field test1 Open
Deep semen deposition, avoiding retrograde flow, lesions and stress, has proved to be very important in the success of sheep AI. The objective of the present study was to develop a new, suitable anti-retrograde flow device for sheep cervic…
View article: Effect of obstacle position in the flow of sheep through a narrow door
Effect of obstacle position in the flow of sheep through a narrow door Open
In a recent work [Phys. Rev. E 91, 022808 (2015)PLEEE81539-375510.1103/PhysRevE.91.022808] it was reported that placing an obstacle in front of a gate has a beneficial effect in the flow of sheep through it. Here, we extend such results by…
View article: Flow and clogging of a sheep herd passing through a bottleneck
Flow and clogging of a sheep herd passing through a bottleneck Open
We present an experimental study of a flock passing through a narrow door. Video monitoring of daily routines in a farm has enabled us to collect a sizable amount of data. By measuring the time lapse between the passage of consecutive anim…